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Proceedings Paper

Fast Fourier and wavelet transforms for wavefront reconstruction in adaptive optics
Author(s): Farid U. Dowla; James M. Brase; Scot S. Olivier; Charles A. Thompson
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Paper Abstract

Wavefront reconstruction techniques using the least-squares estimators are computationally quite expensive. We compare wavelet and Fourier transforms techniques in addressing the computation issues of wavefront reconstruction in adaptive optics. It is shown that because the Fourier approach is not simply a numerical approximation technique unlike the wavelet method, the Fourier approach might have advantages in terms of numerical accuracy. To optimize the wavelet method, a statistical study might be necessary to use the best basis functions or 'approximation tree.'

Paper Details

Date Published: 22 November 2000
PDF: 10 pages
Proc. SPIE 4124, High-Resolution Wavefront Control: Methods, Devices, and Applications II, (22 November 2000); doi: 10.1117/12.407495
Show Author Affiliations
Farid U. Dowla, Lawrence Livermore National Lab. (United States)
James M. Brase, Lawrence Livermore National Lab. (United States)
Scot S. Olivier, Lawrence Livermore National Lab. (United States)
Charles A. Thompson, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 4124:
High-Resolution Wavefront Control: Methods, Devices, and Applications II
John D. Gonglewski; Mikhail A. Vorontsov; Mark T. Gruneisen, Editor(s)

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